Finding the Fourth Proportional to 13,319,277.19, 18,380,602.55 and 7,207,705.69
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Solution
The fourth proportional to 13,319,277.19, 18,380,602.55 and 7,207,705.69 is: 9,946,633.87
Step by Step Solution
- Step 1: Write the proportion equation
13,319,277.19 : 18,380,602.55 = 7,207,705.69 : x - Step 2: Convert to fraction form
13,319,277.19/18,380,602.55 = 7,207,705.69/x - Step 3: Cross multiply
13,319,277.19x = 18,380,602.55 × 7,207,705.69 - Step 4: Simplify right side
13,319,277.19x = 132,481,973,557,331.25 - Step 5: Solve for x
x = 132,481,973,557,331.25/13,319,277.19 - Step 6: Final answer
x = 9,946,633.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.